text: /*
   * Copyright (c) 2017 Samsung Electronics Co., Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  // CLASS HEADER
  #include <dali/devel-api/threading/thread.h>
  
  // EXTERNAL INCLUDES
  #include <cstddef>
  #include <thread>
  #include <dali/integration-api/debug.h>
  
  namespace Dali
  {
  
  struct Thread::ThreadImpl
  {
    ThreadImpl( Thread& aThis )
    : thread( &Thread::InternalThreadEntryFunc, std::ref( aThis ) )
    {
      // std::thread starts execution immediately
    }
    ~ThreadImpl( )
    {
      thread.join();
    }
    std::thread thread;
  };
  
  Thread::Thread()
  : mImpl( nullptr )
  {
  }
  
  Thread::~Thread()
  {
    Join();
  }
  
  void Thread::Start()
  {
    if( !mImpl )
    {
      mImpl = new Thread::ThreadImpl( *this );
    }
  }
  
  void Thread::Join()
  {
    delete mImpl;
    mImpl = nullptr;
  }
  
  void Thread::InternalThreadEntryFunc( Thread& aThis )
  {
    aThis.Run();
  }
  
  } // namespace Dali
  